Finding the Fourth Proportional to 107,716.09, 161,499.18 and 47,711.99
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Solution
The fourth proportional to 107,716.09, 161,499.18 and 47,711.99 is: 71,534.79
Step by Step Solution
- Step 1: Write the proportion equation
107,716.09 : 161,499.18 = 47,711.99 : x - Step 2: Convert to fraction form
107,716.09/161,499.18 = 47,711.99/x - Step 3: Cross multiply
107,716.09x = 161,499.18 × 47,711.99 - Step 4: Simplify right side
107,716.09x = 7,705,447,261.17 - Step 5: Solve for x
x = 7,705,447,261.17/107,716.09 - Step 6: Final answer
x = 71,534.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.